US PATENT SUBCLASS 473 / 8
.~.~.~ Using interchangeable, shiftable, reversible, or removable cushion rails

Current as of: June, 1999
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473 /   HD   GAMES USING TANGIBLE PROJECTILE

1  DF  BILLIARDS OR POOL {8}
4  DF  .~ Table or gameboard {16}
6  DF  .~.~ Convertible between billiard and pool (i.e., between pocketed and nonpocketed) {3}
8.~.~.~ Using interchangeable, shiftable, reversible, or removable cushion rails

DEFINITION

Classification: 473/8

Using interchangeable, shiftable, reversible, or removable cushion rails:

(under subclass 6) Subject matter wherein a table or gameboard having a pocketed playing surface includes or there is provided for use with the table or gameboard (a) carom rails which, when placed in position on the playing surface, prevent a ball moving over the playing surface from entering the pockets of the playing surface and other carom rails which, when placed in position on the playing surface, allow a ball moving over the playing surface to enter the pockets; (b) carom rails which are movably mounted or invertibly mounted on the playing surface whereby, when they are in one position, prevent a ball moving over the playing surface from entering the pockets and, when they are in the other position, allow a ball moving over the playing surface to enter the pockets; or (c) additional carom rails which, when removably placed in position inside the regular carom rails of the playing surface, prevent a ball moving over the playing surface from entering the pockets.